EP1505472A3 - Système de protection de données électroniques - Google Patents

Système de protection de données électroniques Download PDF

Info

Publication number
EP1505472A3
EP1505472A3 EP04027003A EP04027003A EP1505472A3 EP 1505472 A3 EP1505472 A3 EP 1505472A3 EP 04027003 A EP04027003 A EP 04027003A EP 04027003 A EP04027003 A EP 04027003A EP 1505472 A3 EP1505472 A3 EP 1505472A3
Authority
EP
European Patent Office
Prior art keywords
electronic data
key
decrypting
medium
encrypted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04027003A
Other languages
German (de)
English (en)
Other versions
EP1505472A2 (fr
Inventor
Takayuki Hasebe
Ryota Akiyama
Makoto Yoshioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13073046&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1505472(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of EP1505472A2 publication Critical patent/EP1505472A2/fr
Publication of EP1505472A3 publication Critical patent/EP1505472A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1408—Protection against unauthorised use of memory or access to memory by using cryptography
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G06F21/1014—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to tokens
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G06F21/805—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors using a security table for the storage sub-system
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2129—Authenticate client device independently of the user
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00347—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier wherein the medium identifier is used as a key
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
EP04027003A 1992-03-16 1993-03-16 Système de protection de données électroniques Withdrawn EP1505472A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5804892 1992-03-16
JP04058048A JP3073590B2 (ja) 1992-03-16 1992-03-16 電子化データ保護システム、使用許諾者側装置および使用者側装置
EP93400658A EP0561685B1 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP93400658A Division EP0561685B1 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques

Publications (2)

Publication Number Publication Date
EP1505472A2 EP1505472A2 (fr) 2005-02-09
EP1505472A3 true EP1505472A3 (fr) 2006-01-18

Family

ID=13073046

Family Applications (3)

Application Number Title Priority Date Filing Date
EP04027002A Withdrawn EP1505471A3 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques
EP93400658A Expired - Lifetime EP0561685B1 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques
EP04027003A Withdrawn EP1505472A3 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP04027002A Withdrawn EP1505471A3 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques
EP93400658A Expired - Lifetime EP0561685B1 (fr) 1992-03-16 1993-03-16 Système de protection de données électroniques

Country Status (4)

Country Link
US (3) US5392351A (fr)
EP (3) EP1505471A3 (fr)
JP (1) JP3073590B2 (fr)
DE (1) DE69333754T2 (fr)

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EP0561685A2 (fr) 1993-09-22
US5555304A (en) 1996-09-10
JP3073590B2 (ja) 2000-08-07
EP0561685B1 (fr) 2005-02-09
EP0561685A3 (en) 1993-12-22
EP1505471A2 (fr) 2005-02-09
DE69333754D1 (de) 2005-03-17
US5392351A (en) 1995-02-21
DE69333754T2 (de) 2005-08-04
EP1505472A2 (fr) 2005-02-09
US5796824A (en) 1998-08-18
JPH05257816A (ja) 1993-10-08
EP1505471A3 (fr) 2006-01-18

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